PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L21BA3-0Mount,resilient,weapon System

Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp · NSN 5342-00-802-8958 · FSC 5342 · Mount,resilient,weapon System
Verified by PartsTable
NSN 5342-00-802-8958 — this item is cataloged by the U.S. Government under National Stock Number 5342-00-802-8958. Primary manufacturer part number: L21BA3-0.
Features
  • Mount,resilient,weapon System — FSC 5342
  • Flange Thickness: 0.121 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
  • Material: ALUMINUM BASE
  • Material: ALUMINUM ALLOY CUP
  • Height: 0.219 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN
  • Load Rating: 3.0 POUNDS MAXIMUM LBS
  • Flange Width: 1.250 INCHES NOMINAL IN
  • Flange Mounting Hole Diameter: 0.162 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Base construction
General Description

The Mount,resilient,weapon System, cataloged under National Stock Number 5342-00-802-8958, is classified within Federal Supply Class 5342 (Mount,resilient,weapon System) of the Hardware and Abrasives group. The primary manufacturer of record is Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5342-00-802-8958
Primary Part NumberL21BA3-0
Item NameMount,resilient,weapon System
FSC / FSG5342 / 53 — Mount,resilient,weapon System
ManufacturerHutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
StatusCANCELLED
Flange Thickness0.121 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
MaterialALUMINUM BASE
MaterialALUMINUM ALLOY CUP
Height0.219 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN
Load Rating3.0 POUNDS MAXIMUM LBS
Flange Width1.250 INCHES NOMINAL IN
Flange Mounting Hole Diameter0.162 INCHES NOMINAL IN
Style DesignatorROUND TWO-HOLE FLANGE
MaterialALUMINUM ALLOY CORE
Distance Between Mounting Hole Centers1.414 INCHES NOMINAL IN
Flange Length1.750 INCHES NOMINAL IN
Thread Size6-32UNC-2B ALL THREADED PORTIONS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
4330-01-425-770129558329 INTERCHANGEABLE
Parts Kit,fluid Pressure Filter
Allison Transmission Inc Dba Allison Transmission, Inc
4730-01-689-15212002314 INTERCHANGEABLE
Nipple,hose
Aero Specialties Inc Div Sales
Cross-Reference Index
Part NumberManufacturer
L21BA3-0 PRIMARY Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp (USA)
200-2314 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
200-2314-060 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
4330-01-425-7701INTERCHANGEABLE
PARTS KIT,FLUID PRESSURE FILTER
29558329
4730-01-689-1521INTERCHANGEABLE
NIPPLE,HOSE
2002314

Frequently Asked Questions

What is NSN 5342-00-802-8958?

NSN 5342-00-802-8958 is a Mount,resilient,weapon System, manufactured by Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp, classified under FSC 5342 (Mount,resilient,weapon System). Status: cancelled.

What are the part numbers for NSN 5342-00-802-8958?

NSN 5342-00-802-8958 has 3 cross-referenced part numbers: L21BA3-0 (Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp), 200-2314 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 200-2314-060 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 5342-00-802-8958?

There are 2 known substitutes for 5342-00-802-8958: 4330-01-425-7701, 4730-01-689-1521. Verify interchangeability with system specifications before substitution.

What are the specifications of L21BA3-0?

Key specifications for L21BA3-0: Flange Thickness: 0.121 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN; Material: ALUMINUM BASE; Material: ALUMINUM ALLOY CUP; Special Features: SNUBBER-NEOPRENE RUBBER,SPRING-CRES. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5342-00-802-8958 still in active supply?

NSN 5342-00-802-8958 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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